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Laser Laboratory for Ultrasonic Measurements
Laser-based ultrasonic measurements for nondestructive testing are performed in this laboratory.
Description
The laser laboratory for ultrasonic measurements within the research group Mechanics of Adaptive Systems facilitates contactless vibration measurements in sub-nanometer range. The laboratory is equipped with a highly sensitive laser-based measurement system, which enables high precision scanning of different specimens owing to automated positioning system in the range up to 800 x 1600 x 350mm. This system is employed for the research of reconnaissance possibilities in mechanized tunneling (Collaborative Research Center SFB 837, Subproject A2) and for non-destructive testing of numerous materials with different surface coarseness.
Application fields
- Vibration measurement in ultrasonic range (100kHz - 50MHz)
- Contactless detection of displacements in sub-nanometer range
- Nondestructive Testing (NDT)
- Damage detection, identification of inhomogeneities, obstacles and inclusions
equipment
- Laser system Quartet Bossa Nova Technologies with Fiber-Head for easy positioning
- Optical table Newport for vibration isolation with automatic level regulation
- Arbitary true waveform generator (Agilent)
- Data aquisition system (National Instruments)
- Power amplifer (E&I)
- Ultrasonic transducers 0,1 - 10 MHz
- Positioning system (in-house development, research group Mechanics of Adaptive Systems)